Tree Ulmus parvifolia 'Emer II' [sold as Allee®] [Allee Lacebark Elm] Stunning, multi-colored mottled and exfoliating bark, even on the surface roots. Tends to maintain foliage well during droughts. Grows well under city conditions. Resistant to Dutch elm disease and the elm leaf beetle.
Tree Ulmus parvifolia 'UPMTF' [sold as Bosque®] [Bosque Lacebark Elm] Stunning, multi-colored, mottled, and exfoliating bark. Grows well under city conditions. Good resistance against Dutch elm disease, elm leaf beetle, and Japanese beetle. Slightly weak wooded, sometimes damaged by ice storms.
Shrub Viburnum burejaeticum [Manchurian Viburnum] The Manchurian Viburnum is an uncommon species similar to Viburnum lantana (Wayfaringtree). A very adaptable shrub with good flower production, fruit set, and fall color. Grows remarkably fast in the spring.
Shrub Viburnum × burkwoodii [Burkwood Viburnum] Trouble-free plant tolerant of soils and pollution (except sulfur). Also, does not tolerate more severe drought. Very fragrant when in bloom, although to a lesser degree than Viburnum carlesii (Koreanspice Viburnum). Bacterial spot and powdery mildew susceptibility (but not always a problem). Sulfur containing pesticides burn or defoliate leaves. Too thin to be a solid screen.
Shrub Viburnum × burkwoodii 'Chenaultii' [Chenault Burkwood Viburnum] 'Chenaultii' has a finer-textured, more delicate appearance than the species type due to its smaller leaves and thinner branches. Trouble-free plant tolerant of soils and pollution (except sulfur). Also, does not tolerate more severe drought. Very fragrant when in bloom, although to a lesser degree than Viburnum carlesii (Koreanspice Viburnum). Bacterial spot and powdery mildew susceptibility (but not always a problem). Sulfur containing pesticides burn or defoliate leaves. Too thin to be a solid screen.
Shrub Viburnum × carlcephalum [Carlcephalum Viburnum] This viburnum is an open, rounded shrub known for its snowball-like clusters of fragrant, white flowers in May.
Shrub Viburnum × carlcephalum 'Cayuga' [Cayuga Viburnum] Cayuga Viburnum is a backcross between V. x carlcephualum and V. carlesii, known for its fragrant flowers and upright to slightly spreading habit. Pink buds open to clusters of white fragrant flowers in May. Leaves change from a dark green to a vibrant orange-red in the fall. Bacterial leaf spot can be a problem in some settings. Prune immediately after flowering for best flower show the next year.
Shrub Viburnum carlesii [Koreanspice Viburnum] Very fragrant when in bloom. Bacterial leaf spot can be a problem in some settings. Prune immediately after flowering for best flower show the next year.
Shrub Viburnum carlesii 'Compactum' [Compact Koreanspice Viburnum] 'Compactum' is a drawf cultivar, maxing the height around 3-4 feet in height. Flowers are similar in size to straight species. Very fragrant when in bloom. Bacterial leaf spot can be a problem in some settings. Prune immediately after flowering for best flower show the next year.
Shrub Viburnum dentatum 'Christom' [sold as Blue Muffin™] [Blue Muffin Arrowwood Viburnum] 'Christom', often sold under the name Blue Muffin, is a compact variant known for its strongly blue fruits. Flowers malodorous to some. Attractive to birds. Name derived from Native American use of strong sucker shoots for arrow shafts. The most durable of viburnums. Serves as a nice neutral background shrub.